distpl:Afstand punt-lijn I
distpl2:Afstand punt-lijn II
lineonpnt:Line on point I
lineonpnt2:Line on point II
par1:Parallel I
par2:Parallel II
parm2eq:Parametrized to equation
perp1:Perpendicular I
perp2:Perpendicular II
pnt2eq:2 points
pntonline:Point on line I
pntonline2:Point on line II
slope2eq:Point and slope
